Finnish Meteorological Institute observations at Helsinki's central station confirm the city's highest temperature peaked at 10°C around 20:00 local time on April 29, 2026, amid persistent northwesterly winds and partial cloud cover that capped daytime warming. This aligns with forecast model consensus from earlier updates, which projected mild spring conditions with highs near 8–10°C under a cool air mass influenced by recent Arctic inflows. Trader sentiment reflects this verified data, pricing 10°C at full implied probability as evening cooling set in, following the typical diel temperature cycle. Final daily summaries from the Institute could note minor revisions, but exceeding 10°C would require an improbable late surge absent solar heating or wind shifts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Helsinki on April 29?
10°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$90,233 Vol.
$90,233 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
Yes
11°C
No
12°C
No
13°C
No
14°C
No
15°C or higher
No
10°C 100.0%
5°C or below <1%
6°C <1%
7°C <1%
$90,233 Vol.
$90,233 Vol.
5°C or below
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
Yes
11°C
No
12°C
No
13°C
No
14°C
No
15°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 27, 2026, 12:11 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Finnish Meteorological Institute observations at Helsinki's central station confirm the city's highest temperature peaked at 10°C around 20:00 local time on April 29, 2026, amid persistent northwesterly winds and partial cloud cover that capped daytime warming. This aligns with forecast model consensus from earlier updates, which projected mild spring conditions with highs near 8–10°C under a cool air mass influenced by recent Arctic inflows. Trader sentiment reflects this verified data, pricing 10°C at full implied probability as evening cooling set in, following the typical diel temperature cycle. Final daily summaries from the Institute could note minor revisions, but exceeding 10°C would require an improbable late surge absent solar heating or wind shifts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


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